SN54-74LS90 ON Semiconductor, SN54-74LS90 Datasheet - Page 2

• Manufacturer Part Number: SN54-74LS90
• Description: DECADE COUNTER; DIVIDE-BY-TWELVE COUNTER; 4-BIT BINARY COUNTER
• Manufacturer: ON Semiconductor

LOGIC DIAGRAM
LOGIC DIAGRAM
LOGIC DIAGRAM
MS 1
MS 2
CP 0
CP 1
MR 1
MR 2
14
6
7
1
2
3
MR 1
MR 2
CP 0
CP 1
MR 1
MR 2
CP 0
CP 1
14
1
6
7
J
CP
K
14
1
2
3
S D
C D
J
CP
K
C D
Q
Q
J
CP
K
Q
Q
C D
SN54/74LS90 SN54/74LS92 SN54/74LS93
Q 0
Q
Q
Q 0
12
12
Q 0
12
J
CP
K
J
CP
K
C D
S D
C D
J
CP
K
C D
Q
Q
Q
Q
LS90
LS92
LS93
Q
Q
Q 1
Q 1
Q 1
9
11
J
CP
K
9
FAST AND LS TTL DATA
S D
C D
J
CP
K
J
CP
K
C D
C D
Q
Q
Q
Q
Q
Q
Q 2
Q 2
Q 2
8
V CC = PIN 5
GND = PIN 10
V CC = PIN 5
GND = PIN 10
9
8
V CC = PIN 5
GND = PIN 10
5-2
J
CP
K
= PIN NUMBERS
= PIN NUMBERS
= PIN NUMBERS
C D
J
CP
K
C D
Q
Q
11
R
CP
S
Q
Q
S D
C D
Q 3
8
Q 3
Q
Q
11
Q 3
NOTE:
The Flatpak version has the same
pinouts (Connection Diagram) as
the Dual In-Line Package.
NOTE:
The Flatpak version has the same
pinouts (Connection Diagram) as
the Dual In-Line Package.
NOTE:
The Flatpak version has the same
pinouts (Connection Diagram) as
the Dual In-Line Package.
CONNECTION DIAGRAM
NC = NO INTERNAL CONNECTION
CONNECTION DIAGRAM
NC = NO INTERNAL CONNECTION
CONNECTION DIAGRAM
NC = NO INTERNAL CONNECTION
MR 1
MR 2
V CC
MS 1
MS 2
V CC
MR 1
MR 2
MR 1
MR 2
V CC
CP 1
CP 1
CP 1
NC
NC
NC
NC
NC
NC
NC
DIP (TOP VIEW)
DIP (TOP VIEW)
DIP (TOP VIEW)
1
2
3
4
5
6
7
1
2
3
4
5
6
7
1
2
3
4
5
6
7
14
13
12
11
10
14
13
12
11
10
14
13
12
11
10
9
8
9
8
9
8
CP 0
NC
Q 0
Q 3
GND
Q 1
Q 2
CP 0
NC
Q 0
Q 1
GND
Q 2
Q 3
CP 0
NC
Q 0
Q 3
GND
Q 1
Q 2